EP 2149211 A4 20140604 - OPTICAL FIBRE AMPLIFIER
Title (en)
OPTICAL FIBRE AMPLIFIER
Title (de)
GLASFASERVERSTÄRKER
Title (fr)
AMPLIFICATEUR DE FIBRE OPTIQUE
Publication
Application
Priority
- CA 2008000813 W 20080417
- US 90783107 P 20070418
Abstract (en)
[origin: WO2008128359A1] An optical amplifier (1000) for amplifying an optical signal (1002), the optical amplifier (1000) comprising: an optical fibre (1004), the optical fibre including a doped core (1006), an inner cladding (1008) extending substantially radially outwardly from the doped core (1006) and an outer cladding (1010) extending substantially radially outwardly from the inner cladding (1008); a signal coupler (1012) for receiving the optical signal (1002) and guiding the optical signal (1002) into the doped core (1006); a first pump light source (1014) for producing a first pump light having a first power, the first pump light source (1014) being optically coupled to the optical fibre (1000) at a first location therealong for guiding the first pump light into the inner cladding (1008) at the first location; and a second pump light source (1016) for producing a second pump light having a second power, the second power being larger than the first power, the second pump light source (1016) being optically coupled to the optical fibre (1004) at a second location therealong for guiding the second pump light into the inner cladding (1008) at the second location; wherein the first location is located between the signal coupler and the second location.
IPC 8 full level
H01S 3/067 (2006.01); G02B 6/02 (2006.01); G02B 6/28 (2006.01); H01S 3/091 (2006.01); H01S 3/094 (2006.01); H01S 3/13 (2006.01); H01S 3/16 (2006.01); H04B 10/29 (2013.01)
CPC (source: EP US)
G02B 6/2804 (2013.01 - EP US); G02B 6/2835 (2013.01 - EP US); H01S 3/06754 (2013.01 - EP US); H01S 3/094003 (2013.01 - EP US); H01S 3/1608 (2013.01 - EP US); H01S 3/161 (2013.01 - EP US); H01S 3/1616 (2013.01 - EP US); H01S 3/1618 (2013.01 - EP US); G02B 6/02042 (2013.01 - EP US); H01S 3/094007 (2013.01 - EP US); H01S 3/094019 (2013.01 - EP US); H01S 3/13013 (2019.07 - EP US)
Citation (search report)
- [A] US 2005168804 A1 20050804 - DAWSON JAY W [US], et al
- [X] US 6603598 B1 20030805 - OLIVETI GUIDO [IT], et al
- [Y] US 6111686 A 20000829 - TOYOHARA ATSUSHI [JP]
- [Y] US 6608951 B1 20030819 - GOLDBERG LEW [US], et al
- [A] US 2005105854 A1 20050519 - DONG LIANG [US], et al
- [A] US 6801550 B1 20041005 - SNELL KEVIN J [US], et al
- [A] JP 2001320115 A 20011116 - NEC CORP
- See references of WO 2008128359A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2008128359 A1 20081030; CA 2683951 A1 20081030; CA 2683951 C 20160927; EP 2149211 A1 20100203; EP 2149211 A4 20140604; US 2009231684 A1 20090917; US 8085464 B2 20111227
DOCDB simple family (application)
CA 2008000813 W 20080417; CA 2683951 A 20080417; EP 08748215 A 20080417; US 8161508 A 20080418